Home / 144,361,986.40-216,542,979.60-86,966,358.40

Finding the Fourth Proportional to 144,361,986.40, 216,542,979.60 and 86,966,358.40

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Solution

The fourth proportional to 144,361,986.40, 216,542,979.60 and 86,966,358.40 is: 130,449,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,361,986.40 : 216,542,979.60 = 86,966,358.40 : x
  2. Step 2: Convert to fraction form
    144,361,986.40/216,542,979.60 = 86,966,358.40/x
  3. Step 3: Cross multiply
    144,361,986.40x = 216,542,979.60 × 86,966,358.40
  4. Step 4: Simplify right side
    144,361,986.40x = 18,831,954,372,897,488
  5. Step 5: Solve for x
    x = 18,831,954,372,897,488/144,361,986.40
  6. Step 6: Final answer
    x = 130,449,537.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.